Neon [Neon NightDrive] Token

Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)

Contract creator or owner is blacklisted for past scams

Reentrancy in NeonToken._transfer(address,address,uint256) (#1087-1192):
External calls:
- swapBack() (#1148)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1221-1228)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1204-1210)
- (success) = address(marketingWallet).call{value: ethForMarketing}() (#1258)
- (success,None) = address(buybackWallet).call{value: address(this).balance}() (#1265)
External calls sending eth:
- swapBack() (#1148)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1221-1228)
- (success) = address(marketingWallet).call{value: ethForMarketing}() (#1258)
- (success,None) = address(buybackWallet).call{value: address(this).balance}() (#1265)
State variables written after the call(s):
- super._transfer(from,address(this),fees) (#1185)
- _balances[sender] = _balances[sender].sub(amount,ERC20: transfer amount exceeds balance) (#372)
- _balances[recipient] = _balances[recipient].add(amount) (#373)
- super._transfer(from,to,amount) (#1191)
- _balances[sender] = _balances[sender].sub(amount,ERC20: transfer amount exceeds balance) (#372)
- _balances[recipient] = _balances[recipient].add(amount) (#373)
- swapping = false (#1150)
- tokensForBuyBack += fees * 33 / 99 (#1166)
- tokensForBuyBack += fees * sellBuybackFee / sellTotalFees (#1173)
- tokensForBuyBack += fees * buyBuybackFee / buyTotalFees (#1180)
- tokensForLiquidity += fees * 33 / 99 (#1165)
- tokensForLiquidity += fees * sellLiquidityFee / sellTotalFees (#1172)
- tokensForLiquidity += fees * buyLiquidityFee / buyTotalFees (#1179)
- tokensForMarketing += fees * 33 / 99 (#1167)
- tokensForMarketing += fees * sellMarketingFee / sellTotalFees (#1174)
- tokensForMarketing += fees * buyMarketingFee / buyTotalFees (#1181)
Apply the check-effects-interactions pattern.

Additional information: link

Not a direct threat, but may indicate unreliable intentions of developer. Widespread names (e.g. Elon, King, Moon, Doge) are common among meme-tokens and scams. The allow to gain free hype and attract unexperienced investors.

NeonToken._transfer(address,address,uint256) (#1087-1192) performs a multiplication on the result of a division:
-fees = amount.mul(99).div(100) (#1164)
-tokensForLiquidity += fees * sellLiquidityFee / sellTotalFees (#1172)
NeonToken._transfer(address,address,uint256) (#1087-1192) performs a multiplication on the result of a division:
-fees = amount.mul(99).div(100) (#1164)
-tokensForLiquidity += fees * 33 / 99 (#1165)
NeonToken._transfer(address,address,uint256) (#1087-1192) performs a multiplication on the result of a division:
-fees = amount.mul(99).div(100) (#1164)
-tokensForBuyBack += fees * sellBuybackFee / sellTotalFees (#1173)
NeonToken._transfer(address,address,uint256) (#1087-1192) performs a multiplication on the result of a division:
-fees = amount.mul(99).div(100) (#1164)
-tokensForBuyBack += fees * 33 / 99 (#1166)
NeonToken._transfer(address,address,uint256) (#1087-1192) performs a multiplication on the result of a division:
-fees = amount.mul(99).div(100) (#1164)
-tokensForMarketing += fees * sellMarketingFee / sellTotalFees (#1174)
NeonToken._transfer(address,address,uint256) (#1087-1192) performs a multiplication on the result of a division:
-fees = amount.mul(99).div(100) (#1164)
-tokensForMarketing += fees * 33 / 99 (#1167)
NeonToken._transfer(address,address,uint256) (#1087-1192) performs a multiplication on the result of a division:
-fees = amount.mul(buyTotalFees).div(100) (#1178)
-tokensForLiquidity += fees * buyLiquidityFee / buyTotalFees (#1179)
NeonToken._transfer(address,address,uint256) (#1087-1192) performs a multiplication on the result of a division:
-fees = amount.mul(buyTotalFees).div(100) (#1178)
-tokensForBuyBack += fees * buyBuybackFee / buyTotalFees (#1180)
NeonToken._transfer(address,address,uint256) (#1087-1192) performs a multiplication on the result of a division:
-fees = amount.mul(buyTotalFees).div(100) (#1178)
-tokensForMarketing += fees * buyMarketingFee / buyTotalFees (#1181)
Consider ordering multiplication before division.

Additional information: link

Reentrancy in NeonToken.constructor() (#929-988):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#939)
State variables written after the call(s):
- transferOwnership(newOwner) (#987)
- _owner = newOwner (#654)
Reentrancy in NeonToken.swapBack() (#1231-1266):
External calls:
- swapTokensForEth(amountToSwapForETH) (#1243)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1204-1210)
State variables written after the call(s):
- tokensForBuyBack = 0 (#1256)
- tokensForLiquidity = 0 (#1254)
- tokensForMarketing = 0 (#1255)
Apply the check-effects-interactions pattern.

Additional information: link

NeonToken._transfer(address,address,uint256) (#1087-1192) uses tx.origin for authorization: require(bool,string)(_holderLastTransferTimestamp[tx.origin] < block.number,_transfer:: Transfer Delay enabled. Only one purchase per block allowed.) (#1115)
Do not use tx.origin for authorization.

Additional information: link

NeonToken.addLiquidity(uint256,uint256) (#1216-1229) ignores return value by uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1221-1228)
Ensure that all the return values of the function calls are used.

Additional information: link

NeonToken.constructor().totalSupply (#953) shadows:
- ERC20.totalSupply() (#246-248) (function)
- IERC20.totalSupply() (#96) (function)
Rename the local variables that shadow another component.

Additional information: link

NeonToken.updateSwapTokensAtAmount(uint256) (#1018-1023) should emit an event for:
- swapTokensAtAmount = newAmount (#1021)
NeonToken.updateMaxAmount(uint256) (#1025-1028) should emit an event for:
- maxTransactionAmount = newNum * (10 ** 2) (#1027)
NeonToken.updateBuyFees(uint256,uint256,uint256) (#1039-1044) should emit an event for:
- buyMarketingFee = _marketingFee (#1040)
- buyLiquidityFee = _liquidityFee (#1041)
- buyBuybackFee = _buyBackFee (#1042)
- buyTotalFees = buyMarketingFee + buyLiquidityFee + buyBuybackFee (#1043)
NeonToken.updateSellFees(uint256,uint256,uint256) (#1046-1051) should emit an event for:
- sellMarketingFee = _marketingFee (#1047)
- sellLiquidityFee = _liquidityFee (#1048)
- sellBuybackFee = _buyBackFee (#1049)
- sellTotalFees = sellMarketingFee + sellLiquidityFee + sellBuybackFee (#1050)
Emit an event for critical parameter changes.

Additional information: link

NeonToken.updateMarketingWallet(address).newMarketingWallet (#1070) lacks a zero-check on :
- marketingWallet = newMarketingWallet (#1072)
NeonToken.updatebuybackWallet(address).newWallet (#1075) lacks a zero-check on :
- buybackWallet = newWallet (#1077)
Check that the address is not zero.

Additional information: link

Reentrancy in NeonToken.constructor() (#929-988):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#939)
State variables written after the call(s):
- _mint(newOwner,totalSupply) (#986)
- _balances[account] = _balances[account].add(amount) (#392)
- excludeFromMaxTransaction(address(uniswapV2Pair),true) (#940)
- _isExcludedMaxTransactionAmount[updAds] = isEx (#1031)
- excludeFromMaxTransaction(newOwner,true) (#977)
- _isExcludedMaxTransactionAmount[updAds] = isEx (#1031)
- excludeFromMaxTransaction(address(this),true) (#978)
- _isExcludedMaxTransactionAmount[updAds] = isEx (#1031)
- excludeFromMaxTransaction(buybackWallet,true) (#979)
- _isExcludedMaxTransactionAmount[updAds] = isEx (#1031)
- excludeFromMaxTransaction(address(0xdead),true) (#980)
- _isExcludedMaxTransactionAmount[updAds] = isEx (#1031)
- _mint(newOwner,totalSupply) (#986)
- _totalSupply = _totalSupply.add(amount) (#391)
- whitelistAccount(newOwner,true) (#972)
- _whitelistAddress[account] = excluded (#1054)
- whitelistAccount(address(this),true) (#973)
- _whitelistAddress[account] = excluded (#1054)
- whitelistAccount(address(0xdead),true) (#974)
- _whitelistAddress[account] = excluded (#1054)
- whitelistAccount(buybackWallet,true) (#975)
- _whitelistAddress[account] = excluded (#1054)
- _setAutomatedMarketMakerPair(address(uniswapV2Pair),true) (#941)
- automatedMarketMakerPairs[pair] = value (#1065)
- buyBuybackFee = _buyBuybackFee (#960)
- buyLiquidityFee = _buyLiquidityFee (#959)
- buyMarketingFee = _buyMarketingFee (#958)
- buyTotalFees = buyMarketingFee + buyLiquidityFee + buyBuybackFee (#961)
- buybackWallet = address(0xC8f597c62A8cE7Eb4ce45e5a5fbcC37bF027D336) (#969)
- marketingWallet = address(0xB79E0319f34FB55454F6ba919b75a5Cd50DbC6BF) (#968)
- maxTransactionAmount = totalSupply * 10 / 100 (#955)
- sellBuybackFee = _sellBuybackFee (#965)
- sellLiquidityFee = _sellLiquidityFee (#964)
- sellMarketingFee = _sellMarketingFee (#963)
- sellTotalFees = sellMarketingFee + sellLiquidityFee + sellBuybackFee (#966)
- swapTokensAtAmount = totalSupply * 1 / 100 (#956)
Reentrancy in NeonToken.swapBack() (#1231-1266):
External calls:
- swapTokensForEth(amountToSwapForETH) (#1243)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1204-1210)
- (success) = address(marketingWallet).call{value: ethForMarketing}() (#1258)
- addLiquidity(liquidityTokens,ethForLiquidity) (#1260)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1221-1228)
External calls sending eth:
- (success) = address(marketingWallet).call{value: ethForMarketing}() (#1258)
- addLiquidity(liquidityTokens,ethForLiquidity) (#1260)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1221-1228)
State variables written after the call(s):
- addLiquidity(liquidityTokens,ethForLiquidity) (#1260)
- _allowances[owner][spender] = amount (#438)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in NeonToken._transfer(address,address,uint256) (#1087-1192):
External calls:
- swapBack() (#1148)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1221-1228)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1204-1210)
- (success) = address(marketingWallet).call{value: ethForMarketing}() (#1258)
- (success,None) = address(buybackWallet).call{value: address(this).balance}() (#1265)
External calls sending eth:
- swapBack() (#1148)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1221-1228)
- (success) = address(marketingWallet).call{value: ethForMarketing}() (#1258)
- (success,None) = address(buybackWallet).call{value: address(this).balance}() (#1265)
Event emitted after the call(s):
- Transfer(sender,recipient,amount) (#374)
- super._transfer(from,address(this),fees) (#1185)
- Transfer(sender,recipient,amount) (#374)
- super._transfer(from,to,amount) (#1191)
Reentrancy in NeonToken.constructor() (#929-988):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#939)
Event emitted after the call(s):
- OwnershipTransferred(_owner,newOwner) (#653)
- transferOwnership(newOwner) (#987)
- SetAutomatedMarketMakerPair(pair,value) (#1067)
- _setAutomatedMarketMakerPair(address(uniswapV2Pair),true) (#941)
- Transfer(address(0),account,amount) (#393)
- _mint(newOwner,totalSupply) (#986)
- whitelistAddress(account,excluded) (#1055)
- whitelistAccount(buybackWallet,true) (#975)
- whitelistAddress(account,excluded) (#1055)
- whitelistAccount(address(0xdead),true) (#974)
- whitelistAddress(account,excluded) (#1055)
- whitelistAccount(address(this),true) (#973)
- whitelistAddress(account,excluded) (#1055)
- whitelistAccount(newOwner,true) (#972)
Reentrancy in NeonToken.swapBack() (#1231-1266):
External calls:
- swapTokensForEth(amountToSwapForETH) (#1243)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1204-1210)
- (success) = address(marketingWallet).call{value: ethForMarketing}() (#1258)
- addLiquidity(liquidityTokens,ethForLiquidity) (#1260)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1221-1228)
External calls sending eth:
- (success) = address(marketingWallet).call{value: ethForMarketing}() (#1258)
- addLiquidity(liquidityTokens,ethForLiquidity) (#1260)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1221-1228)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#439)
- addLiquidity(liquidityTokens,ethForLiquidity) (#1260)
- SwapAndLiquify(amountToSwapForETH,ethForLiquidity,tokensForLiquidity) (#1261)
Apply the check-effects-interactions pattern.

Additional information: link

Context._msgData() (#19-22) is never used and should be removed
ERC20._burn(address,uint256) (#407-415) is never used and should be removed
SafeMath.mod(uint256,uint256) (#584-586) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#600-603) is never used and should be removed
SafeMathInt.abs(int256) (#708-711) is never used and should be removed
SafeMathInt.add(int256,int256) (#699-703) is never used and should be removed
SafeMathInt.div(int256,int256) (#679-685) is never used and should be removed
SafeMathInt.mul(int256,int256) (#667-674) is never used and should be removed
SafeMathInt.sub(int256,int256) (#690-694) is never used and should be removed
SafeMathInt.toUint256Safe(int256) (#714-717) is never used and should be removed
SafeMathUint.toInt256Safe(uint256) (#721-725) is never used and should be removed
Remove unused functions.

Additional information: link

Pragma version0.8.10 (#12) necessitates a version too recent to be trusted. Consider deploying with 0.6.12/0.7.6/0.8.7
solc-0.8.10 is not recommended for deployment
Deploy with any of the following Solidity versions: 0.5.16 - 0.5.17, 0.6.11 - 0.6.12, 0.7.5 - 0.7.6 Use a simple pragma version that allows any of these versions. Consider using the latest version of Solidity for testing.

Additional information: link

Low level call in NeonToken.swapBack() (#1231-1266):
- (success) = address(marketingWallet).call{value: ethForMarketing}() (#1258)
- (success,None) = address(buybackWallet).call{value: address(this).balance}() (#1265)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Function IUniswapV2Pair.DOMAIN_SEPARATOR() (#40) is not in mixedCase
Function IUniswapV2Pair.PERMIT_TYPEHASH() (#41) is not in mixedCase
Function IUniswapV2Pair.MINIMUM_LIQUIDITY() (#58) is not in mixedCase
Function IUniswapV2Router01.WETH() (#731) is not in mixedCase
Event NeonTokenwhitelistAddress(address,bool) (#915) is not in CapWords
Event NeonTokenmarketingWalletUpdated(address,address) (#919) is not in CapWords
Event NeonTokenbuybackWalletUpdated(address,address) (#921) is not in CapWords
Parameter NeonToken.updateBuyFees(uint256,uint256,uint256)._marketingFee (#1039) is not in mixedCase
Parameter NeonToken.updateBuyFees(uint256,uint256,uint256)._liquidityFee (#1039) is not in mixedCase
Parameter NeonToken.updateBuyFees(uint256,uint256,uint256)._buyBackFee (#1039) is not in mixedCase
Parameter NeonToken.updateSellFees(uint256,uint256,uint256)._marketingFee (#1046) is not in mixedCase
Parameter NeonToken.updateSellFees(uint256,uint256,uint256)._liquidityFee (#1046) is not in mixedCase
Parameter NeonToken.updateSellFees(uint256,uint256,uint256)._buyBackFee (#1046) is not in mixedCase
Constant NeonToken.deadAddress (#869) is not in UPPER_CASE_WITH_UNDERSCORES
Variable NeonToken._isExcludedMaxTransactionAmount (#907) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Redundant expression "this (#20)" inContext (#14-23)
Remove redundant statements if they congest code but offer no value.

Additional information: link

Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#736) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#737)
Prevent variables from having similar names.

Additional information: link

NeonToken.constructor() (#929-988) uses literals with too many digits:
- totalSupply = 100000000 * 10 ** 2 (#953)
NeonToken.updateSwapTokensAtAmount(uint256) (#1018-1023) uses literals with too many digits:
- require(bool,string)(newAmount >= totalSupply() * 1 / 100000,Swap amount cannot be lower than 0.001% total supply.) (#1019)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

SafeMathInt.MAX_INT256 (#662) is never used in SafeMathInt (#660-718)
Remove unused state variables.

Additional information: link

name() should be declared external:
- ERC20.name() (#214-216)
symbol() should be declared external:
- ERC20.symbol() (#222-224)
decimals() should be declared external:
- ERC20.decimals() (#239-241)
transfer(address,uint256) should be declared external:
- ERC20.transfer(address,uint256) (#265-268)
allowance(address,address) should be declared external:
- ERC20.allowance(address,address) (#273-275)
approve(address,uint256) should be declared external:
- ERC20.approve(address,uint256) (#284-287)
transferFrom(address,address,uint256) should be declared external:
- ERC20.transferFrom(address,address,uint256) (#302-310)
increaseAllowance(address,uint256) should be declared external:
- ERC20.increaseAllowance(address,uint256) (#324-327)
decreaseAllowance(address,uint256) should be declared external:
- ERC20.decreaseAllowance(address,uint256) (#343-346)
renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#642-645)
setAutomatedMarketMakerPair(address,bool) should be declared external:
- NeonToken.setAutomatedMarketMakerPair(address,bool) (#1058-1062)
isExcludedFromFees(address) should be declared external:
- NeonToken.isExcludedFromFees(address) (#1081-1083)
Use the external attribute for functions never called from the contract.

Additional information: link

Average 30d PancakeSwap liquidity is less than $100. Token is either dead or inactive.

Average 30d PancakeSwap volume is less than $100. Token is either dead or inactive.

Average 30d number of PancakeSwap swaps is less than 1. Token is either dead or inactive.

Average PancakeSwap trading volume, liqudity, number of swaps are extremely low. Token seems to be dead.

Contract has 10% buy tax and 20% sell tax.
Taxes are high (over 10%) but contract ownership is renounced.

Number of Binance Smart Chain (BSC) token holders is low.

Token is deployed only at one blockchain

BscScan page for the token does not contain additional info: website, socials, description, etc.

Additional information: link

Unable to find token on CoinGecko

Additional information: link

Unable to find token on CoinMarketCap

Additional information: link

Unable to find token/project description on the website or on BscScan, CoinMarketCap

Unable to find token contract audit

Unable to verify that token and website are owned by the same team (no listings + unable to find contract on website)

Unable to verify token contract address on the website

Unable to find audit link on the website

Unable to find whitepaper link on the website

Unable to find Telegram link on the website

Unable to find Twitter link on the website

Unable to find token on CoinHunt

Additional information: link

Unable to find code repository for the project

Token is marked as scam (rug pull, honeypot, phishing, etc.)

Additional information: link

Young tokens have high risks of scam / price dump / death

Young tokens have high risks of scam / price dump / death

Token has no active CoinGecko listing / rank

Token has no active CoinMarketCap listing / rank